LayoutTests/fast/dom/constructed-objects-prototypes.html - WebKit - Git at Google

 <!DOCTYPE HTML PUBLIC "-//IETF//DTD HTML//EN">
 <html>
 <head>
 <script src="../../resources/js-test-pre.js"></script>
 </head>
 <body>
 <script>
 description("Make sure prototypes are set up using the window a property came from, instead of the lexical global object.")

 var subframe = document.createElement("iframe");
 document.body.appendChild(subframe);
 var inner = subframe.contentWindow; // Call it "inner" to make shouldBe output shorter

 // Stash a property on the prototypes.
 window.Object.prototype.isInner = false;
 inner.Object.prototype.isInner = true;

 var constructorNames = ["Image", "MediaController", "Option", "OverflowEvent", "ProgressEvent", "URL", "XMLHttpRequest"];

 var argumentsForConstructor = {
     'URL' : "'about:blank'",
     'Worker' : "'foo'",
 }

 for (var x = 0; x < constructorNames.length; x++) {
     var constructorName = constructorNames[x];
     var arguments = argumentsForConstructor[constructorName] || "";
     var argumentsString = "(" + arguments + ")";
     // Test first to see if the object is constructable
     var constructedObject;
     try {
         constructedObject = eval("new inner." + constructorName + argumentsString);
     } catch(e) {
         continue;
     }

     shouldBeTrue("(new inner." + constructorName + argumentsString + ").isInner");
     shouldBeTrue("(new inner." + constructorName + argumentsString + ").constructor.isInner");
 }

 document.body.removeChild(subframe);
 </script>
 <script src="../../resources/js-test-post.js"></script>
 </body>
 </html>
	<!DOCTYPE HTML PUBLIC "-//IETF//DTD HTML//EN">
	<html>
	<head>
	<script src="../../resources/js-test-pre.js"></script>
	</head>
	<body>
	<script>
	description("Make sure prototypes are set up using the window a property came from, instead of the lexical global object.")

	var subframe = document.createElement("iframe");
	document.body.appendChild(subframe);
	var inner = subframe.contentWindow; // Call it "inner" to make shouldBe output shorter

	// Stash a property on the prototypes.
	window.Object.prototype.isInner = false;
	inner.Object.prototype.isInner = true;

	var constructorNames = ["Image", "MediaController", "Option", "OverflowEvent", "ProgressEvent", "URL", "XMLHttpRequest"];

	var argumentsForConstructor = {
	'URL' : "'about:blank'",
	'Worker' : "'foo'",
	}

	for (var x = 0; x < constructorNames.length; x++) {
	var constructorName = constructorNames[x];
	var arguments = argumentsForConstructor[constructorName] \|\| "";
	var argumentsString = "(" + arguments + ")";
	// Test first to see if the object is constructable
	var constructedObject;
	try {
	constructedObject = eval("new inner." + constructorName + argumentsString);
	} catch(e) {
	continue;
	}

	shouldBeTrue("(new inner." + constructorName + argumentsString + ").isInner");
	shouldBeTrue("(new inner." + constructorName + argumentsString + ").constructor.isInner");
	}

	document.body.removeChild(subframe);
	</script>
	<script src="../../resources/js-test-post.js"></script>
	</body>
	</html>